Bug 187828

Summary:	Reproducible: Flaky failure on fast/css-grid-layout/flex-content-sized-columns-resize.html
Product:	WebKit	Reporter:	Dawei Fenton (:realdawei) <realdawei>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ap, lforschler, ryanhaddad, simon.fraser, sroberts, tsavell, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	Unspecified
OS:	Unspecified

Description Dawei Fenton (:realdawei) 2018-07-19 16:21:41 PDT

The following layout test is on High Sierra Release Wk2

fast/css-grid-layout/flex-content-sized-columns-resize.html

Probable cause:
Unknown, image results display "No Such Resource", "file not found"

Will attempt to find a recipe to reproduce.

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fcss-grid-layout%2Fflex-content-sized-columns-resize.html

Comment 1 Dawei Fenton (:realdawei) 2018-07-19 16:55:08 PDT

most of the time the failure is reproducible by increasing the iterations to > 5

recipe:
run-webkit-tests fast/css-grid-layout/flex-content-sized-columns-resize.html  --iter 6

Sample stderr:
Error: test and reference images have different sizes. Test image is 600x600, reference image is 800x600
ImageDiff crashed
ref test mismatch did not produce an image diff

Comment 2 Radar WebKit Bug Importer 2018-07-31 17:02:00 PDT

<rdar://problem/42793001>

Comment 3 Shawn Roberts 2019-05-23 14:39:39 PDT

Test recently started showing up on the dashboard with the same failure on Mojave.

Repro case listed works on Mojave as well. 

Same error as listed above.

Marked as flaky in https://trac.webkit.org/changeset/245719/webkit